Description

2,7-Naphthalenedisulfonic acid, 4-[[4-[[[[5-hydroxy-6-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-5-methoxy-2-methylphenyl]azo]-5-[(phenylsulfonyl)oxy]-, sodium salt is a high-purity, complex azo dye intermediate of significant industrial importance. This compound is valued for its role in synthesizing specialized dyes and pigments, offering precise color properties and structural functionality. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing high-performance colorants.

Application

• Primary Intermediate for Reactive Dyes: A key building block in the synthesis of high-grade reactive dyes for cotton and other cellulosic fibers.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring specific color fastness and stability.
• Functional Dye Synthesis: Serves as a precursor for dyes used in non-textile applications, such as laser dyes, optical data storage, and sensitizers.
• Research & Development: Employed in chemical R&D for developing novel chromophores and studying azo dye chemistry and properties.
• Analytical Chemistry: Can be utilized as a standard or reagent in analytical methods for dye identification and quantification.

Basic Information

Item	Details
Product Name	2,7-Naphthalenedisulfonic acid, 4-[[4-[[[[5-hydroxy-6-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-5-methoxy-2-methylphenyl]azo]-5-[(phenylsulfonyl)oxy]-, sodium salt
CAS No.	83006-44-4
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Reactive Red 198; Sodium 4-[[4-[[[[5-hydroxy-6-[[4-[(4-nitro-2-sulfophenyl)amino]phenyl]azo]-7-sulfo-2-naphthalenyl]amino]carbonyl]amino]-5-methoxy-2-methylphenyl]azo]-5-(phenylsulfonyloxy)-2,7-naphthalenedisulfonate; Reactive Red 198; C.I. 18221; RR 198; Azo dye intermediate 83006-44-4; Complex sulfonated azo compound
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for sensitive synthesis processes. Quality is verified through modern analytical techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from incompatible materials. Due to its complex structure, prolonged exposure to elevated temperatures or humidity should be avoided.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Moisture Content	Max. 5.0%
Solubility	Soluble in water

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.